Intermittent OMAP-L138 Power up problem

Jeremy Huffman

Other Parts Discussed in Thread: OMAP-L138, OMAPL138

I am experiencing an intermittent OMAP-L138 power up problem and it seems to be coming from the fact that the processor remains in reset.

Could this be due to the fact that I am biasing the reset and BOOT pins to a voltage that comes up well before the OMAP-L138's I/O voltage?

over 11 years ago

0 Titusrathinaraj Stalin over 11 years ago

TI__Guru** 116100 points

Hi,
Please make sure that OMAP power sequence happening correctly.

0 Senthilkumar Srinivasan over 11 years ago

TI__Mastermind 43660 points

Hello Jeremy,

Please adhere to the power up sequence mentioned in the OMAPL138 data manual. It is required to bias the reset only after all the power rails reached its nominal value. Else you may see functional issues.

Regards,
Senthil

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Intermittent OMAP-L138 Power up problem